40641585880 has 192 divisors, whose sum is σ = 111797310240. Its totient is φ = 13241346048.

The previous prime is 40641585851. The next prime is 40641585883. The reversal of 40641585880 is 8858514604.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40641585883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3111844 + ... + 3124876.

Almost surely, 2^40641585880 is an apocalyptic number.

40641585880 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40641585880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55898655120).

40641585880 is an abundant number, since it is smaller than the sum of its proper divisors (71155724360).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40641585880 is a wasteful number, since it uses less digits than its factorization.

40641585880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13138 (or 13127 counting only the distinct ones).

The product of its (nonzero) digits is 1228800, while the sum is 49.

The spelling of 40641585880 in words is "forty billion, six hundred forty-one million, five hundred eighty-five thousand, eight hundred eighty".